Re: How to get percentage of each group?

2012-09-06 Thread Bejoy KS
Hi CROSS JOIN is same as giving JOIN keyword. CROSS JOIN just a new notation in later releases of hive. JOIN without ON is same as CROSS JOIN   Regards, Bejoy KS From: MiaoMiao To: user@hive.apache.org Sent: Friday, September 7, 2012 11:46 AM Subject: Re: How

Large text loading into hive table

2012-09-06 Thread shaik ahamed
Hi Users, Please help me out in the below query's to go further in hive. 1.How can i load an large text into an hive table ,and the syntax of that. 2.Is it possible in hive to process an unstructured data i.e audio ,image and smiley symbol purely unstru

Re: How to get percentage of each group?

2012-09-06 Thread MiaoMiao
You mean this one? Hive 0.8 doesn't have CROSS JOIN, so I don't know if this query works. SELECT A.userType , A.userType_count/B.global_count FROM ( SELECT userType , COUNT(1) as userType_count FROM some_table GROUP BY userType ) A CRO

Re: How to get percentage of each group?

2012-09-06 Thread Bertrand Dechoux
Hi, You could use a cross join. You basically have one table select userType , count(1) from some_table group by userType and a second one select count(1) from some_table With a cross join you can add the global count to every results in the first table and compute a ratio.

How to get percentage of each group?

2012-09-06 Thread MiaoMiao
I have a table, containing userId and userType. userIduserType 1A 2B 3C 4A 5B 6B I want to get percentage of each userType. My current solution: 1. Get count of each group via THRIFT select userType , count(1) from some_table group by userType 2. Calc

Re: Hive error: Unable to deserialize reduce input key

2012-09-06 Thread Navis류승우
I've tried to deserialize your data. 0 = bigint = -6341068275337623706 1 = string = TTFVUFHFH 2 = int = -1037822201 3 = int = -1467607277 4 = int = -1473682089 5 = int = -1337884091 6 = string = I 7 = string = IVH ISH 8 = int = -1321908327 9 = int = -1475321453 10 = int = -1476394752 11 = string =

Re: Hive error: Unable to deserialize reduce input key

2012-09-06 Thread praveenesh kumar
I am not sure, what can be the issue...I had it long back and got no response. I tried these things: 1. Increased the Child JVM heap size. 2. Reduced the number of reducers for the job. 3. Check whether your disks are not getting full while running the query. 3. Checked my data again. I think many

Re: Hive error: Unable to deserialize reduce input key

2012-09-06 Thread 曹坤
Hi praveenesh kumar : I am getting the same error today. Do you have any solution ? 2012/3/23 praveenesh kumar > Hi all, > > I am getting this following error when I am trying to do select ...with > group by operation.I am grouping on around 25 columns > > java.lang.RuntimeException: > org.ap

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2012-09-06 Thread Haijia Zhou
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Re: UDAF:FAILED: Execution Error

2012-09-06 Thread Tamil A
Hi Matouk, Thank you so much for your reply, problem is with the classpath. Now it works fine. Regards, Tamil On Thu, Sep 6, 2012 at 9:26 PM, Matouk Iftissen wrote: > Hello, > > **· **With UDF you do this : > > package com.example.hive.udf; > > import org.apache.hadoop.hiv

RE: UDAF:FAILED: Execution Error

2012-09-06 Thread Matouk Iftissen
Hello, · With UDF you do this : package com.example.hive.udf; import org.apache.hadoop.hive.ql.exec.UDF; public final class Maclass extends UDF{.} · then you generate your jar monjar.jar (for example) with java class (maclass) · you add you jar to hive: hiv

UDAF:FAILED: Execution Error

2012-09-06 Thread Tamil A
Hi Experts, I have written an UDAF function and followed the below steps. Step 1: Export jar file Step 2: hive>ADD JAR /userdata/tamil/SumOfColumnTest/AvgOfColumn.jar; (also tried with hive --auxpath /userdata/tamil/SumOfColumnTest/AvgOfColumn.jar; export HADOOP_CLASSPATH=

Hive running issue on Cygwin

2012-09-06 Thread Ajit Kumar Shreevastava
Hi, configure Hive 0.8.1 upon Hadoop 0.20.2 in Cygwin (on windows 7 64 bit). Hive is started properly as I am getting Hive CLI when type hive. But while running any command in hive its not returning any response. Ajit.Shreevastava@hclt-40124697 ~ $ hive Logging initialized using configuration in